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<p>The NVLAP Handbooks and Lab Bulletins are available as PDF documents. You may download the Adobe Reader PDF viewer for free on all platforms from the<a href="https://get.adobe.com/reader/"> Adobe Systems web site</a>.</p><p>Lab Bulletins that are specific to a Laboratory Accreditation Program (LAP) are listed across from their associated handbooks. A Lab Bulletin is used to inform laboratories of program additions and changes, and to provide clarification of program-specific requirements. A bulletin should be inserted into the appropriate Program-Specific Handbook until the handbook is revised, at which time the bulletin will be incorporated into the handbook.</p><p>If you are unable to load and use Adobe Reader, please e-mail NVLAP at <span class="spamspan"><span class="u">nvlap</span> [at] <span class="d">nist.gov</span><span class="t"> (NVLAP[at]nist[dot]gov)</span></span>, or call NVLAP at (301) 975-4016.</p><table align="left"><tbody><tr><td><h2>NVLAP Handbook</h2></td><td><h2>Program/Title</h2></td><td><h2>Associated Lab Bulletins</h2></td></tr><tr><td><a href="https://nvlpubs.nist.gov/nistpubs/hb/2020/NIST.HB.150-2020-upd1.pdf"><span>NIST Handbook 150: 2020, update 1</span></a></td><td>NVLAP Procedures and General Requirements</td><td><p><a class="media-link-ga " data-entity-substitution="canonical" data-entity-type="media" data-entity-uuid="9428475b-dc9f-4444-96af-1785c3830247" data-file-url="/system/files/documents/2024/03/29/LB-156-2024%20Relocation%20of%20NIST%20Handbook%20150-xx%20checklists.pdf" href="/document/lb-156-2024-relocation-nist-handbook-150-xx-checklists" title="LB-156-2024 Relocation of NIST Handbook 150-xx checklists">Lab Bulletin LB-156-2024: Relocation of the NIST Handbook 150-xx program-specific checklists to the NVLAP Interactive Web System (NIWS) Lab Portal</a></p><p><a class="media-link-ga " data-entity-substitution="canonical" data-entity-type="media" data-entity-uuid="4dc91cd3-a20f-488b-8b91-ee57be378dc7" data-file-url="/system/files/documents/2020/09/10/LB-132-2020%20Implementation%20of%20Cause%20Analysis%20for%20NCR%20submission.pdf" href="/document/lb-132-2020-implementing-cause-analysis-non-conformity-response-submission-through-nvlap" title="LB-132-2020: Implementing Cause Analysis for the Non-Conformity Response submission through the NVLAP Interactive Web System (NIWS)"><span>Lab Bulletin LB-132-2020: Implementing Cause Analysis for the Non-Conformity Response submission through the NVLAP Interactive Web System (NIWS)</span></a></p></td></tr><tr><td><p><a href="https://doi.org/10.6028/NIST.HB.150-1-2021">NIST Handbook 150-1: 2021</a></p><p>&nbsp;</p></td><td><a class="ck-anchor" id="eel"></a>NVLAP Energy Efficient Lighting Products</td><td><p><a class="media-link-ga " data-entity-substitution="canonical" data-entity-type="media" data-entity-uuid="dabfd0eb-3a84-4220-a6b3-d764a2e5bb30" data-file-url="/system/files/documents/2023/07/18/LB-150-2023%20Calibration%20of%20Phase%20in%20Power%20Meters%20EEL%20LAP.pdf" href="/document/lb-150-2023-calibration-phase-power-meters-eel-lap" title="LB-150-2023 Calibration of Phase in Power Meters EEL LAP">Lab Bulletin LB-150-2023: Calibration of Phase in Power Meters</a></p><p><a class="media-link-ga " data-entity-substitution="canonical" data-entity-type="media" data-entity-uuid="476e607f-3bdf-4dca-934f-0219d19c1f5d" data-file-url="/system/files/documents/2021/07/12/LB-139-2021%20HB%20150-1%20Revision.pdf" href="/document/lab-bulletin-lb-139-2021-release-nist-handbook-150-1-2021-edition" title="Lab Bulletin LB 139-2021:&nbsp;Release of NIST Handbook 150-1, 2021 Edition">Lab Bulletin LB 139-2021:&nbsp;Release of NIST Handbook 150-1, 2021 Edition</a></p><p><a href="https://www.nist.gov/document/lab-bulletin-lb-116-2020"><span>Lab Bulletin LB-116-2020:&nbsp;Update to NVLAP accreditation documents for laboratories accredited to ISO/IEC 17025:2017 under the ILAC MRA</span></a></p></td></tr><tr><td><a class="ck-anchor" id="150-2" href="https://doi.org/10.6028/NIST.HB.150-2e2024" name="150-2">NIST Handbook 150-2: 2024</a></td><td>NVLAP Calibr
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